Very odd condition. When people separate senses get muddled up it can leave people with extraordinary abilities, many great musicians have had this condition. Take a look at some of the people who have it and what they say about it here: http://en.wikipedia.org/wiki/List_of_...
""'Until one day,' I said to my father, 'I realized that to make an R all I had to do was first write a P and draw a line down from its loop. And I was so surprised that I could turn a yellow letter into an orange letter just by adding a line'"
Some people can cross other aspects apart from color, taste, seeing, emotions, personifiication and other senses can all be connected in strange ways.
""Ts are generally crabbed, ungenerous creatures. U is a soulless sort of thing. 4 is honest, but 3 I cannot trust 9 is dark, a gentleman, tall and graceful, but politic under his suavity"